Fix build status badge in README.md

Author: tf

README.md

@@ -3,7 +3,7 @@
 [![Gem Version](https://badge.fury.io/rb/activeadmin-searchable_select.svg)](http://badge.fury.io/rb/activeadmin-searchable_select)
 [![NPM Version](https://badge.fury.io/js/@codevise%2Factiveadmin-searchable_select.svg)](https://badge.fury.io/js/@codevise%2Factiveadmin-searchable_select)
 [![npm](https://img.shields.io/npm/dm/@codevise/activeadmin-searchable_select)](https://www.npmjs.com/package/@codevise/activeadmin-searchable_select)
-[![Build Status](https://github.com/codevise/activeadmin-searchable_select.svg?branch=master)](https://github.com/codevise/activeadmin-searchable_select/actions)
+[![Build Status](https://github.com/codevise/activeadmin-searchable_select/actions/workflows/tests.yml/badge.svg)](https://github.com/codevise/activeadmin-searchable_select/actions)
 
 Searchable select boxes (via [Select2](https://select2.org/)) for
 ActiveAdmin forms and filters. Extends the ActiveAdmin resource DSL to